I don't necessarily agree with that. Not saying any of them aren't preparing (doping w/o getting caught) to the best of their and their trainer/doctor's abilities. But a rider who can do a fast TT time has the watts to climb at a high steady pace. When Ganna or Van Aert etal. start making the sort of repeated sudden uphill accelerations that we see from the small climbers then that will be thermonuclear.